Back-filling attachment for excavators



June 24, 1930.

G. E. WAGNIER 1,765,892

BACK FILLING ATTACHMENT FOR EXCAVA'IQRS Filed Oct. 28, 1927 2 Sheet-Sheet 1 R", JNVENTOR.

Groncz [T Was/W572.

I ATTORNEYJ.

June 24, 1930.

G. E. WAGNER BACK FILLING ATTACHMENT FOR EXCAVATOR'S Filed Oct. 28. 1927 2 Sheets-Shqet 2' .INVENTOR.

ATTORNEYJ:

-25 .Of the accompanying drawingsflzz Patented June':24, 1930 I I v a p c it GEORGEE. WAGNER, on AKRON} oHIo As'sI'GfiO f Y 'M'ESNE As'sIGnMnNTs To 1 CLQTT'ER-WAGNER, xlvo ei conronearlom'on 0310 mc -rf me iATTAGI-IMENfi non nxcAvA'rolasf I Application fiIed OctOherZS, 1e21, I Serial No. 229,442. I 1 I V :This invention;relatesato hack-filling at-Y-able excavator apparatus (not shown) and tachrnents for excavators; particularly t of the-boom and stick being actuated hy -the that type such vas the ditcher 'which employs ho1sting= -line 13 andthe hauling or drag a-di'pper stick swinging on'aboomandwheh 1111B I i 1 In Figures land 2,1the 'ditcher shown is 1 i A n V v provided-Hvvith a scoop 15 ,the eife'ctivecut'f 1' 1Therehas heretofore been employed in ting angle 'ofwhich is maintained through the art a back-filling blade adapted to be 'm e t h o an i k y pivattached to the dipper stick, but, dueto the D g t front end. of the scoop n e 1 arcuat mo m ntrof the 'tilg th bl d :cated'at-IG- onjthe lower end of the stlckand assumes such angles toward the extremes of byP mgend fl e" SCOOP by c th arcuate m; whichena; 'eff a' llIik or links indicated at'17 tobell-cran'k, v tive for the purpose desired." f v i l V S 18 P Y the stickkfit' 19131161, i

The general purpose o'fithe' present inm CQnIl'eCted by IIDkSQOJtO Q fl he ventionis to' provideian improved back-fill- :l1nkagehetvveen the; scoop, the v stl ck and the ving attachment in which theaback-ifilling imng u h het SCOOPIS malntalnefl I plementsis maintained at an effective angle te fe lve excavatlng angles when moved 'overaW-icle range of movement of. the stick. w rd the extremes of 1ts arcn'ate move- The foregoing-and otherspurposesof the e'ntfabout't yp t Q j ShP i zo invent'ion areattained by the devices illus WP of l h f is l y 70 .t t d in"theaccompanying .d i f d known and further clescrlptlon' there'of, ac-

described below. Itis. to be understoodthat 'd g Yy I 11013v b Y- e Scoop v the invention-is not" limited to th e' specific 15 may e. qfthe drop bottom type, the botforms thereof'shown and. described. a m I5Tbe1ng latched at the heel of the scoop by latch 15 controlled by the usual 575 5 useclioneXcavating, carrying a scofop'on its lower end. I

z Figuref l illustrates,in part, side'ele mp ne ot ShOWI1). v a v vationof a known;typeyofditching. eXcava- Th hauhngwor drag l ne 14; s. connected tor having'abaokfilling blade in; combina- 0 he Scoop 15 by a br dle or ball 1 9M n ti'ontherewitlnaiid so constructed thatmoverder tosecure the desired II10Y m n 0f he ments of'thejditchenpartsfland'also ofathe back-filling attachment mdlcated at 21, it is a -1 f {th b l fill'i tt hm nt: o r plvotally attached'at thetopasshown at22 ate to maintain the back-fillingblade. at an t th oppos ar s of th bri l l tand it effective angle over law'widezrange; t; lso? attached to the S P l5l5y-iliilks Figure 2;is an outer end elevation'gthereof, 23 hlngedly connected to. the b'OttOm' 'Of'th e partly-in section ,7 hack-fillerand to the, sides of the scoop.- The 3 Figure 3 is a side elevation.sim-ilar to linkage s such that whenv the stick is verti-' Figure 1 of a modified.iorm of"back-fill ng cal; the b ack-filler Wlll'bG parallel thereto. apparatus embodynig theinventioni'andscon- By: thls c0nstruct1on, the angular shifting of structed to maintain-the back-fillinghladeat the scoop on the stlckfduring its movement 40 an elfectiveanglefoverca compai'atively ide and also the relative angular shifting ofthe 90 -range, "1somewhataless' th an;=-that-ofl'the p'rehealing hne '14 and the scoop are ntilized' 'to ferredapparatlisshown iIi Figu're 1; and Inamtam-'the backrfillingrblade at an el'iiec; ,aazFigure t-is' a similarview-illustrating the lll VB angletvvhlch v1's"comparatlvelysteepwith V "manner ofsusing lithe hack filling attachrespect to the 'horizontal'xover. a Wide; rang OY mentlo'f the bladeiby theiboo n an ler, i' 'Referringj toi the drawings vvhich-il-lusstick." g 1 v -trat e an in-stroke? typeof ditcherfthentb *fiIn,Figures '3'. and. a modified, formgot ZmmIlO; designates-the boom andnthe-imconstructionfiis illustratedin -Which the; meral "l l'lth'e.tdipper stickpivoted-thereon scoop controllin'g parts. '17:, '18 and 20 are .50 -at12, the ,boomi'ebeing, pivotedqon any 'suitomitted ,'ascoop;or afsupporting structure 30 '100 hauling line and" stick alone is utilized to angle over a comparatively" wide range, somewhat lessyhoweventhan when used withfthe ditcher illustrated in Figures ll 7 7 and 2.

l Iguish'edfrom prior back filling attachments,

V instead ,of the back-filling blade assuming an extremely acute angle when, it is 'ireached V V outwardly to start a backfilling operation, "Q 0 it is'held'I at an acuteangle' greater than f forty-five degrees (seeFigure it dotted line position on the zri'ghttthereof), and instead 4 i ofamoving .to an'extremely acute angle when swung inwardly,[whereby considerable of jthematerial restsup'on and is carried back gw-ith' the back filler upon 1 its outward move- ;ment, the back Ifiller is held at a steep', obtuse Vangle,..atwhich angle the dirt freely slides fromi the back filler into the fill. l

' simple, "inexpensive; but highly effective, at-

tachment-has been" provided for the purpose 7 Y set forth. It will also be apparent that modifications oftheinvention'may-be resorted to without departingfrom the spirit thereof or thQSCOIJG Of the-appended claims. For exa I ample, in either forni'o f the" apparatus, sov

--far as the action offtheHback-filler is con- .i V cerned, eitheria scoop or any suitable ele- 0 ment taking its place injthe support of the back-filler blade, may performthe desired "*VVhat is cl-aimed is 1'. In combination, an excavator including i a-pivotedboom,fastickpivotedfon the-boom, a scoop carried by the stick, a hoisting line i for operatingthe stick and boom a hauling flli ne' connected by a bridle'to the sc'oop for i function use of the deviceas back t ive umove nent Tofthe-stick and "boom for i shifting the scoop angu'larly with respect to' thestilck 'to maintain the scoop at an effective cutting angle throughout itsc'rowding rnove men'tffand ia back-filler hingedly' supported fromi above by the bridle and its rear by.

.- 2.".In combnation, an jexcavat Tin are simple back-tilling "attachment beingthe 'top of the back-filling attachment 21 "and the bottomj of the attachment being linked bythe members 23 to the rigid scoop maintain the backkfiller 21 at an effective In the usej of this attachment as distin-r 'Itwill appear from the foregoing that a operating the stickpmeans actuated by relalinkage connectedIto-thescoop so as to be. substantially. yertica lgwhen the' stickis ver- 1 .itical, whereby srelative' f novement of the a scoopfcarried by tlie stick, a hoisting line V scoop angularly with respect Y to the stick to 1 ,maintain the scoop at "an effective cutting angle throughout its crowding movementy; and a back-filler vhingedly supported-from" above by the hauling line; and atits rear by linkage connected to the scoop so as to be substantially vertical when-the stick isvertical, whereby relative movement of the hauling line and the scoop willjmaintain the j back-filler at an effective operating, angle with respect tothe horizontal over a wide range of movement of the stick. i

3. In an excavator, a boom; a stick pivotally suspended L therefrom,} a member pivotally supported on the stick, a hauling line connected to the. member, means for angularlyshifting the member relative'to the a stick, said means'beingactua'ted by relative movement'ofthe'stick and bolom,and a back 5 fillersupported by the hauling line and-by links connected to said member to" maintain ment ofthe stick.

4." In an excavator, a pivoted stick, means for operating the stick, a back-filler carried by the stick, and means connected to the back-filler and actuated during operation of the back-filler at a steep angle with respect 3 to the horizontal overa wide range of move the stick to' shift the back-filler relative to the stick sovas to maintain the back-fillerat a steep inclination to the horizontalover a Wide range of movementofthe stick;

: V 5. In combinatioman excavator including a'pivoted boom,-a stickpivotedontheboom, f

a; hoisting line for operating the stickland boom, a hauling line'for operating the stick, said haulingiline'including a b-ridle,=a-backback-filler at an effective ioperating angle with respect to the horizontal :over a "wide range of movement of the stick. f

' filler hingedly 'siipporte d from above by the I '7 bridle and'atits rearby linkage so as to be hauling line and stick "win maintain the 6; In combination, an excavator, including Q 7' boom, a hauling line for Toperating the-stick,

: a pivoted boom, a; stick pivotedgon the" boom, 7 a hoisting line "for operating-thesticlr' aand a; back filler hingedl'y support e'dfrom -above 4 ,I by the h'aulingline'and' at its rear bylink= V age so'as to be substantially?vertical when; V the stick is vertical', and meansfconnecting the linkage, to the stick; whereby relative1 .v -movement of the hauling lineand stickwillf Q 7 maintainthe back-filler at an effective operating angle with respectito the horizontal g; V ov'eria wide range ofmovem'ent of the stick; V x V -27. an excavator, b00m, astickpivotally suspended therefrom, a hauling line for operating the stick, a back-filler supported by the hauling line and by links, and means connecting the links to the stick whereby the back-filler is shifted angularly relative jto the stick by relative angular movement of the hauling line and stick to maintain the back-filler at a steep angle with respect to the horizgntal over a wide range of movement of the stick. v f

GEORGE E. WAGNER. 

